Warning Subnetcache

[Yorgos Thessalonikefs]

Hi Georg,

Probably the compilation or the default configuration of Unbound changed 
between those Debian versions.

This is only a problem if you want the prefetch functionality to work 
with the subnetcache module (ECS); which currently it does not.

You can turn either off and the warning would go away.

If Unbound was compiled with ECS support, the subnetcache module is by 
default enabled in the configuration. To turn it off you need to 
explicitly set a module-config without it, for example:
     server:
         module-config: "validator iterator"

Best regards,
-- Yorgos

On 20/08/2023 11:03, Georg Fronapfel via Unbound-users wrote:
> Hi, on Debian 12.1 with Unbound 1.17.1 I get the following warning: (see 
> warning in bold below)
> Aug 19 13:02:51 rpi4-20210823 systemd[1]: Starting unbound.service - 
> Unbound DNS server…
> Aug 19 13:02:51 rpi4-20210823 unbound[557]: [557:0] notice: init module 
> 0: subnetcache
> Aug 19 13:02:51 rpi4-20210823 unbound[557]: [557:0] *warning: 
> subnetcache: prefetch is set but not working for data originating from 
> the subnet module cache.*
> Aug 19 13:02:51 rpi4-20210823 unbound[557]: [557:0] notice: init module 
> 1: validator
> Aug 19 13:02:51 rpi4-20210823 unbound[557]: [557:0] notice: init module 
> 2: iterator
> Aug 19 13:02:52 rpi4-20210823 unbound[557]: [557:0] info: start of 
> service (unbound 1.17.1).
> Aug 19 13:02:52 rpi4-20210823 systemd[1]: Started unbound.service - 
> Unbound DNS server.
> Aug 19 13:04:54 rpi4-20210823 unbound[557]: [557:0] info: generate 
> keytag query _ta-4f66. NULL IN
> Is that a problem? How can I solve that?
> I did not have that warning with Debian 11.
> Thanks, George
> 
> Georg Fronapfel
> Am Weidengarten 11
> 61476 Kronberg
> Tel: 06173/3274874
> Mobil: 01512/2369069
> Fax: 06173/9969854
>